What do the heads of sharks and dogs represent?

The heads of sharks and dogs usually represent two different personality traits or attitudes on the Internet.

Shark head usually represents the image of strength, confidence and fearlessness. Sharks are the top predators in the ocean, symbolizing strength and dominance. People may choose shark head because they want to show their strong and invincible side, or as a symbol of their confidence and determination.

Dog heads usually represent friendliness, loyalty and loveliness. Dogs are man's best friends and are widely regarded as a symbol of loyalty and friendliness. People may choose dog heads because they want to express their friendliness and kindness, or because they like and praise dogs as lovely animals.